Subtraction fluency within 20 is the focus of this guided lesson for second graders. Kids will be tasked with mental subtraction, as well as with using manipulatives and drawings to add and subtract larger numbers. Word problems will help to round out the lesson, as kids follow the step-by-step method of solving subtraction word problems. For even more practise in this skill, check out our subtraction worksheets.

This lesson helps students develop an ability to compare and contrast as they explore two strategies to solve three-digit addition problems. This EL maths lesson can be used alone or alongside Three-Digit Addition Strategies Review.

Let's see how those addition skills have blossomed over the course of the year! Use this quick maths assessment to gauge your students' abilities to add three-digit numbers, both with and without regrouping.